Baltimore public schools chief Andrés Alonso unveiled on Tuesday a sweeping $2.4 billion plan to overhaul more than 100 schools buildings, while vacating 26 properties over the next decade.

The “10-year plan” calls for renovating or replacing 136 buildings and relocating 12 schools to different properties. Overall, the plan would close 17 schools.

In the Jacobs Report, the city school system said “the poor condition of its buildings has held the district back for decades” and “the accumulation of wear and insufficient resources has caused the condition of the district’s buildings to worsen steadily.”

To pay for the plan, the school system intends to send a financing proposal to the Maryland General Assembly in time for the 2013 legislative session. The plan would allow the system to receive future capital funds as a block grant, which it could then leverage to sell bonds to support the construction.

The report says the plan would align school buildings with demographic trends, have a maximum impact on growth or development in the city and create school buildings on the cutting edge of technology.